Hi Tammya,
I'm not a doctor, but i can say that it does sound like you have a panic disorder, simply b/c i KNOW i do, and you have a lot of the same symptoms. First of all, my whole disorder started one night when a huge panic attack knocked me right on my ass (like what happened to you), with no trigger or prior anxiety. The rest is history...
You asked whether you might have health problems other than anxiety. There's no way i can tell you that, but i CAN tell you that your panic attacks MIGHT be related to some other medical condition though. For instance, my Aunt has just started having panic attacks over the last year or so, and its because she has some sort of respiratory problem where she's allergic to cold air. She's fine all summer, spring and fall, but when winter hits, she won't leave her house. Its very scary for her.
I think that most of us with panic disorders initially think that its a health problem, b/c the symptoms are so physically traumatic.
As for your headaches, i only have possible explanations. For me personally, headaches are not usually a part of my panic attacks. However, i have had them afterwards, b/c i get so dizzy that i think circulation does not flow properly to my head. Therefore, afterwards i have a headache. This also happens to my legs and arms, b/c they generally fall asleep during an intense panic attack as well. These are actually new symptoms for me, never happened before this year.
However, if you are having PAINS all over your body, in regular patterns, to me it doesn't sound like only anxiety. This is only based on my personal experience, but generally i don't experience physical pains. Just diziness, heart palpitations, nausea, etc. Not pain though. Then again, it would depend on the type of pain. Shooting? Burning? Throbbing? Aching? Maybe is it possible that you have a medical condition that is causing panic attacks, rather than the other way around?
I hope i haven't said too much. It just seems to me that panic disorders are widely misunderstood and misrepresented, and it seems to just recently be receiving adequate attention, so i just don't think that any cause can be ruled out, when there is so much yet to learn about it.
Just remember that many of us have intense phy